CN220536894U

CN220536894U - Carrying claw and carrying tool with cover plate battery cell

Info

Publication number: CN220536894U
Application number: CN202322161591.8U
Authority: CN
Inventors: 吴茂华; 刘金锋
Original assignee: Anhui Deyi Energy Technology Co ltd
Current assignee: Anhui Deyi Energy Technology Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-27
Anticipated expiration: 2033-08-09

Abstract

The utility model provides a carrying claw and a carrying tool with a cover plate battery cell, and relates to the technical field of lithium batteries. The carrying claw comprises a claw arm and a claw head, and the claw head and the claw arm are fixed by a connecting rod structure. The jaw includes a vertical portion and a horizontal portion, the horizontal portion being located on a single side of the vertical portion. The vertical portion is used for mounting the connecting rod structure. The upper surface of horizontal part has the clearance recess, and the recess width is greater than the apron thickness, and the recess degree of depth is greater than the apron width. The connecting rod structure can adjust the distance between the claw head and the claw arm. The carrying tool with the cover plate battery core comprises the carrying claw, and the carrying claw is used for bearing the cover plate end of the cover plate battery core. The clearance groove on the claw head is used for giving way to the cover plate with the cover plate battery cell, so that the contact with the welding surface of the cover plate is avoided in the carrying process, the introduction of pollutants into the welding position is prevented, and the welding quality is ensured. The distance between the claw head and the claw arm can be adjusted through the connecting rod structure, and the battery cell with the cover plate can adapt to various length specifications.

Description

Carrying claw and carrying tool with cover plate battery cell

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a carrying claw with a cover plate battery cell and a carrying tool.

Background

Lithium batteries are increasingly used in people's lives, and the quality of lithium batteries is affected by various aspects of the production process. In the production process of the lithium battery, the welding quality of laser full welding is critical to the production rate of the lithium battery. The laser full-welding needs to strictly ensure the cleanness and the smoothness of the surface of a welding material, otherwise, the unqualified welding quality of the laser full-welding can directly lead to unqualified sealing of a lithium battery cell, and further lead to liquid leakage.

In the laser full-face welding process, the battery cell with the cover needs to be carried into the battery cell case in a state where the battery core plate is horizontal. The method comprises the following steps: the procedures of soft connection, mylar wrapping and battery core shell entering all need to use a carrying clamping jaw, and carrying actions in the automatic production process are completed by means of a mechanical device, wherein the carrying clamping jaw is a part of the mechanical device in direct contact with the battery core. The carrying claw is in a folded angle shape, and the upper surface is often adhered with a heat shrinkage tube and a teflon material, so that the damage to the battery core and the cover plate is avoided. However, as the carrying claws wear and the material ages, impurities are easily generated. Impurity adhesion reduces the clean degree of welded surface in the welded position of apron, causes full-scale welding to explode some, pinhole, the low problem of product qualification rate. On the other hand, in order to adapt to the electric core of different length specifications, need dismantle whole transport claw on carrying mechanical device, change the transport claw of different length specifications, change complex operation, influence production efficiency.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a carrying claw and a carrying tool with a cover plate battery cell, which avoid polluting welding positions and are compatible with battery cells with different length specifications.

In order to achieve the above object, the present utility model is realized by the following technical scheme:

the utility model provides a carrying claw with a cover plate battery cell, which comprises a claw arm and a claw head, wherein the claw head and the claw arm are fixed by a connecting rod structure.

The claw head comprises a vertical part and a horizontal part, and the horizontal part is positioned on one side of the vertical part.

The vertical portion is used for mounting the connecting rod structure.

The upper surface of horizontal part has the clearance recess, and the recess width is greater than the apron thickness, and the recess degree of depth is greater than the apron width.

The connecting rod structure can adjust the distance between the claw head and the claw arm.

Optionally, the claw arm is connected with the handling equipment.

Optionally, the claw arm has a claw arm through hole for installing the connecting rod structure.

Optionally, the vertical portion of the claw head has a claw head through hole for mounting the connecting rod structure.

Optionally, the connecting rod structure includes threaded connecting rod and nut, the connecting rod passes claw arm through hole and claw head through hole, respectively there is the nut claw arm through hole and claw head through hole both sides, and the nut of through hole both sides is used for fixed claw arm and/or claw head position on the connecting rod.

Optionally, the jaw arm and/or jaw head can be position adjustable within the range of threads of the connecting rod.

Optionally, the link structure includes a plurality of links, the plurality of links being vertically and/or horizontally distributed.

The utility model provides a carrying tool for a battery cell with a cover plate, which comprises the carrying claw for the battery cell with the cover plate.

Optionally, the handling fixture can support the battery cell with the cover plate from two ends, and the handling claw is used for supporting the cover plate end of the battery cell with the cover plate.

The beneficial effects of the utility model are as follows.

1. The clearance groove on the claw head is used for giving way to the cover plate with the cover plate battery cell, so that the contact with the welding surface of the cover plate is avoided in the carrying process, the introduction of pollutants into the welding position is prevented, and the welding quality is ensured.

2. The claw head and the claw arm are of split structures, so that the worn claw head can be replaced conveniently.

3. The distance between the claw head and the claw arm can be adjusted through the connecting rod structure, and the battery cell with the cover plate can adapt to various length specifications.

4. The connecting rod structure comprises a plurality of connecting rods, so that oversized deformation of the carrying claw in the carrying process can be avoided, and the accuracy of the carrying position is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustrations are used for illustration only.

Fig. 1 is a schematic structural diagram of a battery cell with a cover plate in embodiment 1.

Fig. 2 is a schematic structural diagram of a handling tool with a cover plate cell in embodiment 1.

Fig. 3 is a schematic diagram showing a carrying state of the carrying claw with the cap plate cell in embodiment 2.

The electric core plate comprises a core plate body, wherein 1, an electric core plate body, 2, a cover plate body, 3, a claw arm, 31, a claw arm through hole, 4, a claw head, 41, a vertical part, 42, a horizontal part, 43, a clearance groove, 4, a claw head through hole, 5, a connecting rod structure, 51, a connecting rod, 52, a nut, 6, a common carrying claw, 7 and a cylinder.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

Example 1:

the grabbing object of the carrying claw with the cover plate battery core provided in this embodiment is the cover plate battery core, as shown in fig. 1, and includes a core plate 1 and a cover plate 2.

The electric core plate 1 is a coiled core made of a diaphragm and positive and negative coiled materials and is a main component part of the electric core; the cover plate 2 and the shell are subjected to cell sealing, the electrode posts on the cover plate 2 play a role in conducting electricity, the welding range of laser full welding is the joint of the cover plate and the shell, and the cover plate and the shell are welded into a whole to seal the shell; the welding position of the cover plate refers to the side edge of the cover plate contacted with the shell, and in fig. 1, the surface marked with the sign is required to be ensured to be clean during the conveying process.

The length of the electric core plate 1 is L, the width of the cover plate 2 is D, and the thickness of the cover plate 2 is h.

The battery core with the cover plate has various specifications, and the battery core with the cover plate with different specifications has different sizes.

As shown in fig. 2, the carrying claw with the cover plate battery core provided in this embodiment includes a claw arm 3 and a claw head 4, and the claw head 4 and the claw arm 3 are fixed by a connecting rod structure 5.

The claw arm 3 is connected with a cylinder 7 on the carrying device, and the cylinder 7 is positioned above the claw head 4, so that the claw arm is not interfered with the connecting rod structure 5.

Preferably, claw arm 3 is PEEK material, has improved crashproof ability than traditional integral type metal clamping jaw, has increased the durability, and PEEK material itself is smooth, need not paste materials such as pyrocondensation pipe on the upper surface, prevents to produce the viscidity pollutant that is difficult for the clearance.

The claw head 4 includes a vertical portion 41 and a horizontal portion 42, the vertical portion 41 and the horizontal portion 42 are integral, and the horizontal portion 42 is located on a single side of the bottom of the vertical portion 41.

The vertical portion 41 is used for mounting the link structure 5.

The upper surface of the horizontal part 42 is provided with a clearance groove 43, the clearance groove 43 is a square groove horizontally penetrating through the horizontal part 42, the width of the clearance groove 43 is h1, and the clearance groove is larger than the thickness h of the cover plate 2; the depth of the clearance groove 43 is D1 and is larger than the width D of the cover plate 2, so that when the cover plate 2 is carried, the cover plate 2 is positioned in the clearance groove 43 (as shown in fig. 3), the horizontal part 42 is only in contact with the electric core plate 1, but not in contact with the cover plate 2, the pollutant on the upper surface of the horizontal part 42 is prevented from adhering to the welding surface, and the welding defect caused by the pollutant is prevented.

The connecting rod structure 5 can adjust the distance between the claw head 4 and the claw arm 3, so that the extending length of the claw head 4 can be adjusted, and the battery cell with the cover plate can adapt to various length specifications.

The claw arm 3 has a claw arm through hole 31 for mounting the link structure 5.

The vertical portion 41 of the jaw 4 has a jaw through hole 44 for mounting the link structure 5.

The connecting rod structure 5 comprises a threaded connecting rod 51 and a nut 52, and the connecting rod 51 passes through the claw arm through hole 31 and the claw head through hole 44.

Two nuts 52 are arranged on two sides of the claw arm through hole 31 respectively, and the two nuts 52 are used for fixing the position of the claw arm 3 on the connecting rod 51; two nuts 52 are provided on each side of the jaw through hole 44, and the two nuts 52 are used for fixing the position of the jaw 4 on the connecting rod 51.

The jaw arm 3 and/or the jaw head 4 are capable of position adjustment within the range of the threads of the link 51.

Preferably, the inner side of the claw arm through hole 31 and/or the claw head through hole 44 is provided with threads, the claw arm through hole 31 and/or the claw head through hole 44 are matched with the threads of the connecting rod 51, the claw arm through hole and/or the claw head through hole are tightly connected through the matched threads, and the two sides of the claw arm through hole and/or the claw head through hole are provided with nut fixing positions, so that the claw arm 3, the claw head 4 and the connecting rod structure 5 are formed into a whole with good rigidity, unnecessary shaking is avoided in the carrying process, and the electric core plate 1 is prevented from being damaged.

When the head 4 needs to be replaced, the head 4 is detached from the link 51, and the head 4 is replaced with a new one, without having to detach the entire carrying claw entirely.

Preferably, the jaw arm 3 has a plurality of jaw arm through holes 31, the vertical portion 41 of the jaw 4 has a plurality of jaw head through holes 44, and the link structure 5 includes a plurality of links 51, the plurality of links 51 being vertically arranged side by side and/or horizontally arranged side by side to enhance rigidity and prevent the jaw head 4 from being mounted loose.

It is further preferred that the claw arm 3 has two claw arm through holes 31, the vertical portion 41 of the claw head 4 has two claw head through holes 44, and the link structure 5 includes two links 51, and the two links 51 are vertically distributed to resist bending moment generated by gravity of the battery cell with the cover plate and the claw head 4.

Example 2:

as shown in fig. 2, this embodiment provides a handling tool with a cover plate battery cell, and the handling tool is provided with the handling claw.

Alternatively, the handling tool is used for supporting the cover plate battery core of the belt cover plate from two ends, the handling claw is used for supporting the cover plate end (as shown in fig. 3) of the cover plate battery core of the belt cover plate, the handling tool is provided with a common handling claw 6, and the common handling claw 6 is used for supporting the non-cover plate end of the cover plate battery core of the belt cover plate.

When the conventional angle-folded common carrying claws 6 are all adopted, since the length of the common carrying claws 6 is not adjustable, even if the cylinder 7 is installed, since the stroke of the cylinder 7 has its limit, when the cylinder 7 is adjusted to the limit, the desired carrying claw pitch cannot be obtained, the angle-folded common carrying claws 6 need to be entirely replaced. When the carrying tool of the embodiment is adopted, the claw arm 3 and the claw head 4 are of split structures, and different carrying claw distances can be obtained by adjusting the connecting rod structure 5. The method for adjusting the spacing is added besides the method for adjusting the spacing of the air cylinder by the carrying tool, so that a larger spacing adjustment range can be obtained under the condition of not replacing the carrying claw, and the carrying tool can adapt to battery cores with cover plates with more length specifications.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The carrying claw with the cover plate battery core is characterized by comprising a claw arm and a claw head, wherein the claw head and the claw arm are fixed by a connecting rod structure;

the claw head comprises a vertical part and a horizontal part, and the horizontal part is positioned on one side of the vertical part;

the vertical part is used for installing a connecting rod structure;

the upper surface of the horizontal part is provided with a clearance groove, the width of the groove is larger than the thickness of the cover plate, and the depth of the groove is larger than the width of the cover plate;

2. The carrying claw with cover plate cell according to claim 1, wherein the claw arm is connected with a carrying device, and the claw arm has a through hole for mounting a connecting rod structure.

3. The carrying claw with cover plate cell according to claim 1, wherein the vertical portion of the claw head is provided with a through hole for mounting a connecting rod structure.

4. The carrying claw with cover plate cell according to claim 1, wherein the connecting rod structure comprises a threaded connecting rod and nuts, the connecting rod penetrates through the claw arm through hole and the claw head through hole, and nuts are arranged on two sides of the claw arm through hole and the claw head through hole.

5. The carrying claw with cover plate cell according to claim 4, wherein the inner side of the claw arm through hole is provided with threads which are matched with the threads of the connecting rod; the inner side of the claw head through hole is provided with threads which are matched with the threads of the connecting rod.

6. The carrying claw with cover plate cell according to claim 4, wherein the claw arm has a plurality of claw arm through holes, the vertical portion of the claw head has a plurality of claw head through holes, the link structure includes a plurality of links, and the plurality of links are vertically arranged side by side and/or horizontally arranged side by side to enhance rigidity.

7. The carrying claw with cover plate cell of claim 1 wherein the horizontal portion of the claw head is located on a single side of the bottom of the vertical portion.

8. The carrying claw with cover plate cell of claim 1 wherein the claw arm is made of PEEK material.

9. A handling tool with a cover plate cell, which is characterized by comprising the handling claw with the cover plate cell according to any one of claims 1-8.

10. The tooling of claim 9, wherein the tape cover cells can be supported from both sides, and wherein the handling claws of the tape cover cells are used to support the cover ends of the tape cover cells.